Sunspot drawing of 1971-2-13

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https://doi.org/10.7891/e-manuscripta-96739



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1971-02-13
09:00
Hs 1304.5:4378
https://doi.org/10.7891/e-manuscripta-96739
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
42 2 A 18.2 296.8
43 8 B 14.2 331.7
48 4 B -15.4 351.2
51 7 D 18.2 218.4
52 1 A 9.1 275.3
53 9 B 13.8 266.3
54 3 J -13.6 200.3
7 34